Java Phased类代码示例

import org.springframework.context.Phased; //导入依赖的package包/类
private int getPhase(String containerBeanName) {
	Object container = this.context.getBean(containerBeanName);
	if (!(container instanceof Phased)) {
		throw new IllegalStateException("Container '" + containerBeanName + "' does not implement Phased.");
	}
	return ((Phased) container).getPhase();
}
 

import org.springframework.context.Phased; //导入依赖的package包/类
/**
 * Examines an object and sets up a {@code Lifecycle} instance if it can be closed.
 * If it implements {@code Phased} then the phase is used.
 *
 * @param instance  the object to examine, not null
 */
private void findAndRegisterLifeCycle(final Object instance) {
  if (ReflectionUtils.isCloseable(instance.getClass())) {
    registerLifecycle0(new PhasedLifecycle() {
      @Override
      public void stop() {
        ReflectionUtils.close(instance);
      }
      @Override
      public void start() {
      }
      @Override
      public boolean isRunning() {
        return false;
      }
      @Override
      public int getPhase() {
        if (instance instanceof Phased) {
          return ((Phased) instance).getPhase();
        }
        return 0;
      }
      @Override
      public String toString() {
        return instance.getClass().getSimpleName() + ":" + instance.toString();
      }
    });
  }
}
 

import org.springframework.context.Phased; //导入依赖的package包/类
/**
 * Registers a non-component object that requires closing or shutdown when
 * the repository stops.
 * <p>
 * Certain interfaces are automatically detected.
 * If it implements {@code InitializingBean}, then it will be initialized
 * as though using {@link #initialize(InitializingBean)}.
 * If it implements {@code Phased} then the phase is used.
 *
 * @param obj  the object to close/shutdown, not null
 * @param methodName  the method name to call, not null
 */
public void registerLifecycleStop(final Object obj, final String methodName) {
  ArgumentChecker.notNull(obj, "object");
  ArgumentChecker.notNull(methodName, "methodName");
  checkStatus(Status.CREATING);

  initialize0(obj);
  registerLifecycle0(new PhasedLifecycle() {
    @Override
    public void stop() {
      ReflectionUtils.invokeNoArgsNoException(obj, methodName);
    }
    @Override
    public void start() {
    }
    @Override
    public boolean isRunning() {
      return false;
    }
    @Override
    public int getPhase() {
      if (obj instanceof Phased) {
        return ((Phased) obj).getPhase();
      }
      return 0;
    }
    @Override
    public String toString() {
      return obj.getClass().getSimpleName() + ":" + obj.toString();
    }
  });
  _logger.logDebug(" Registered lifecycle-stop: " + obj);
}
 

import org.springframework.context.Phased; //导入依赖的package包/类
/**
 * Registers a {@code Lifecycle} instance.
 *
 * @param lifecycleObject  the object that has a lifecycle, not null
 */
private void registerLifecycle0(Lifecycle lifecycleObject) {
  Integer phase = 0;
  if (lifecycleObject instanceof Phased) {
    phase = ((Phased) lifecycleObject).getPhase();
  }
  List<Lifecycle> list = _lifecycles.get(phase);
  if (list == null) {
    list = new ArrayList<>();
    _lifecycles.put(phase, list);
  }
  list.add(lifecycleObject);
}
 

import org.springframework.context.Phased; //导入依赖的package包/类
public int getPhase(String containerBeanName) {
	Object container = this.context.getBean(containerBeanName);
	if (!(container instanceof Phased)) {
		throw new IllegalStateException("Container '" + containerBeanName + "' does not implement Phased.");
	}
	return ((Phased) container).getPhase();
}
 

import org.springframework.context.Phased; //导入依赖的package包/类
/**
 * Determine the lifecycle phase of the given bean.
 * <p>The default implementation checks for the {@link Phased} interface.
 * Can be overridden to apply other/further policies.
 * @param bean the bean to introspect
 * @return the phase an an integer value. The suggested default is 0.
 * @see Phased
 * @see SmartLifecycle
 */
protected int getPhase(Lifecycle bean) {
	return (bean instanceof Phased ? ((Phased) bean).getPhase() : 0);
}
 

import org.springframework.context.Phased; //导入依赖的package包/类
/**
 * Determine the lifecycle phase of the given bean.
 * <p>The default implementation checks for the {@link Phased} interface.
 * Can be overridden to apply other/further policies.
 * @param bean the bean to introspect
 * @return the phase an integer value. The suggested default is 0.
 * @see Phased
 * @see SmartLifecycle
 */
protected int getPhase(Lifecycle bean) {
	return (bean instanceof Phased ? ((Phased) bean).getPhase() : 0);
}